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er.' TRILuoF BALTIMORE, MARYLAND.

Letters Patent No. 82,893, dated October 6, 1868.

IMPROVEMENT IN STEAM-GEIERAIORS.

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To ALL wHoMV 1T MAwoONcERNz.

t Beit lcnown that I, C. F. TRILL, ofthe city and county of Baltimore,pand State of Maryland, have invented g a new and improved.Steam-Generator; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1' is. a side view, a portion of thewalls being removed to show the internal construction.

Figure 2 is a horizontal section through linea: :c of tig. 1.

Figure 3 is a sectional view of the burner, showingvits connection with the feed-pipe and the heating-pipes.

This invention has for its object the construction ofa strong and durable steam-generator, to be heated by petroleum orother liquid or gaseous fuel, by an arrangement of devices hereinafter described.

In the drawings', .A is the shell of the generator,and a c is a thick covering of strong wire wound tightly and firmly around that portion of it which surrolinds the boiler. One or more layers of wire may .be employed, and it may extend d-irectly or obliquely around the boiler, and may he crossed and overlaid in any way that may be preferred, for the purpose of augmenting the strength of the walls. A l

B is the smoke-flue; C C are the steam-pipes that lead to the steam-gauge, whistle, safety-valve, Svc.; and D is the pipe through which the petroleum or gas is fed to keep up the necessary heat.

The interior of the shell A is divided into three compartments, E F G, by means of two strong partitions, H I. The lower apartment, E, is very shallow, being only large enough to accommodate the supply-pipe D and its branches, together with the burners, and being providd with apertures, e e, for the admission ofair. The upper part, F, is a little deeper, but isonly intend-ed to'hold several convolutions of the steam-pipes, and to form a heater in which the hot air rising from the burners shall be'collected and applied continuously to agreat extent of steam-pipe, so that the heat generated by the burners may be as fully utilized as possible. The central chamber G occupies the greater part of the shell A, being intended to hold the .water from which the steam is generated. i v

The pipe D from the tank or gasometer extends into and directly across the chamber E, and has connected with it a large number oi' branch pipes, d d, extending at right angles from it all along both sides,to or nearly to the walls A'A, and provided at the proper intervals with burners, z'z', attachedto their upper side.

A series of vertical pipes, IJ, is provided within the chamber G, each pipe resting upon the tloor H, directly over 'a burner, or else extending through the floor to a position over the burner, as shown in iig. 3.

When the pipes rest on the floor, an aperture is made through the latter to allow the heat, 83e., from the burners to pass up into and through the pipes. f C,

The upper ends of the pipes are firmly xed tothe upper partition I, so that the products of combustion from the burners pass into chamberF, and thence to the open air by means ofthe ilue B.

The water of course occupies the lower portion of chamber G, its upper portionl being the steam space. From this space the Steam escapes through a series of short pipes, m m m, into a steam-pipe or series of steampipes, K K, arranged i'n chamber F, as shown in'the'drawings, and convoluted in anymanner that may be thought most advantageous for the absorption of the heat from the chamber.

The method which I prefer is that of arranging a-series of independent pipes over the spaces between the tops of the rows of pipes J J', as shown in figg, having one end ,of each pipe, K, closed andthe other passing through the wall A and emptying into a curved tubular section, L,Ifrom which the steam is conveyed to the cylinder by a pipe,` M. In this` case, I carry pipe K back and forth in the same Vvertical plane, as` shawn in iig. 1, inwhich figure the four letters K represent but one pipe, it beingvany one of the pipes K K shown in iig. 2. f The generator thus constructed can be made very cheaply, and will be strong and durable. Nearlyall the heat ot' the bu'i'ners will be utilized, a part of `it beingconfine'd in chamber Eand applied to the bottom of the boiler, and the rest ot it being carried up thronghthe'pipes J J and applied to the water and steam in vchamber G and to the steam-pipes in chamber F.

. The lower' portion, A', of the shell A is made removablc,.s0 that the vpipe D and its branches and the burners can be readily got at for the purpose of cleaning them. The upper part, A, may also, if preferred, be made removable, so that the various pipes in the upper part of the apparatus can be easily cleaned, and any necessary repairs made. i

The weightof a boiler constructed in this manner need not exceed onefourtl1 of the weight ofthe common navy boilers of the same solidity and durability, while it occupies much less room and requires less fuel. The Wires surrounding the boiler should be as fine as possible.

Having thus described my invention, what I claim as new, and desire to secure by Letters Potent, is-

1. The combination of the boiler A, with the layer or layers of Wire a a, wound around it, asdescribed.

2. The arrangement, within the steam-generator A, of the chambers E F G, with the pipesD J K and burners z z', substantially as described.

C. F. TRILL.

Witnesses B. HoFrMAN, FRED. Knoon. 

